The rest of the application is similar to an adult passport application, except it only costs £49, and lasts for five years, not ten years.

A digital photo of the child will need to be submitted (or two photos if applying by post), as well as someone to confirm the child's identity.

This can include dentists, doctors, accountants, journalists, police officers or government workers.

Additional documents that must be sent include a birth or adoption certificate, proof of British nationality (such as a parent's passport) and any additional court documents.

The government website explains: "You need to give both parents’ details when you apply. If you cannot provide the other parent’s details, you need to say why (for example, you’re the only parent named on the birth certificate or you adopted the child on your own)."

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If your child is older, they will need to sign their passport tooCredit: Graham Jepson

Make sure the forms are signed - and if your child is aged between 12 and 15, they would need to sign it as well.

Once you've sent everything off and paid for it, the new passport should arrive within three weeks once approved.